Right hand side of the screen loses picture

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Samsung HL-R6178W DLP TV half of screen goes black [Solved] - HDTV ...

www.tomsguide.com/forum/54431-4-samsung-r6178w-half-screen-black

Aug 28, 2013 - 36 posts - ‎24 authors
Samsung HL-R6178W DLP HDTV I just bought this tv used as is. Every once in a while, the right side of the screen goes black on all inputs. I have read ... As for the 1000 dollar price tag, that's totally bonkers. I found a web site ...Missing: ln52a580

HLR6768W - Right half of screen goes black - Forums - CNET

www.cnet.com > Forums > Samsung

CNETI have a 4 year old 67" Samsung DLP which has worked pretty well other than having... Over the past 6 months it's developed a new behavior where the right half of the screen goes completely black and stays that way until I power cycle the tv.Missing: ln52a580

Samsung LN52A580 Vertical Line Problems - YouTube

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https://www.youtube.com/watch?v=eejE6O340EY
Aug 22, 2011 - Uploaded by Jonathan Polis
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lcd/led tv one side dark video screen display problem fix ...

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https://www.youtube.com/watch?v=dYHPKxijz1A

Replace the screen inverter!

Hi
Check its back-light CCFL lamps. Gopakumar Gopalan Google

This is most likely a damaged pixel. You're either going to have to return it or get a replacement. Or for that matter, put up with it. Sorry

Yes, this is rare but I have seen it before--not fixable if it is what I think it is----It is what is called a Dome effect---the shadow mask in the picture tube is actually contracting and or expanding depending on temperature---

Directly behind the phosphor coating (the stripes that you see on the screen) is a metal screen--the holes or perforations in it line up with the stripes on the phosphor screen.

Some masks either have a material or a defect causing the dome effect----Not likely to be anything else---a Pin amp problem will not usually act the way you describe but a shadow mask inside the picture tube will act exactly that way.

THIS set uses 2 boards inside--one drives the left and the other the right side of the screen.

You have to id which is which (GOOGLE?) AND replace it-every brand has different names for these but it sounds like your problem

Some research (you or me) should give a board breakdown for this model---not looking for main or power board but another like sustain etc. and there will be 2 listed (for right and the left sides)

either a t-con board, video board, or power board

The back light is beginning to fail, thats why it goes shaded but you can still the picture on one side, do a google search for back lights for your make and model, there a few how to's to help you with changing the back light.